Hello,

I was trying to use the infragistic XamDockManager, but I faced some issues.

Main Window:

In the first screen I have a dock manager with document content host, which hast a splitpane inside it.

And a TabGroupPane inside the splitpane.

Next to the document content host I have a XamDockManager.Panes with only one pane.

The Panes in my case the property pane is working just fine, can be dragged to all sides.

What I have issues with is the document content host.
I am populating the TabGroupPane from code behind with the ItemSource property.
I am using a ObservableCollection<ContentPane> to populate it with panes.

Creating the pane with this code:

private void DataBind()
        {
            var frame = new Frame();
            frame.Navigate(new Page1(this));
            var mainPane = new ContentPane
            {
                CloseButtonVisibility = Visibility.Hidden,
                WindowPositionMenuVisibility = Visibility.Hidden,
                Header = "Main pane",
                Content = frame
            };

            ContentPanes.Add(mainPane);

            TbGrpPnContentPanes.ItemsSource = ContentPanes;
        }

And as you can see I set the CloseButtonVisibility & WindowPositionMenuVisibility to Hidden.
I do that because I don't want the main pane to be close or dragged or changed at all.
But still I get those two button, where the X is closing it.

Sub Panes:

When clicking the [Add new pane] button it adds new panes to the tabgrouppane, but they are somehow disabled.
I can't click on them and in the dropdown menu they are also disabled.

Now the questions are:

1: Is it possible to disable the possibility of closing one of the panes and let the rest of them be closable ?

2: How can I enable the sub panes ?

Bonus question: How can I place the pane headers in the bottom and not on top ?

I have attached a sample solution in case you want to reproduce the problem: